Subtract 30/32 from 35/42
35/42 - 30/32 is -5/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
35/42 = 35 × 16/42 × 16 = 560/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
30/32 = 30 × 21/32 × 21 = 630/672 - Subtract the two like fractions:
560/672 - 630/672 = 560 - 630/672 = -70/672 - After reducing the fraction, the answer is -5/48
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